-- card: 6966 from stack: in
-- bmap block id: 7290
-- flags: 0000
-- background id: 3105
-- name: Shading


-- part 6 (button)
-- low flags: 80
-- high flags: A004
-- rect: left=7 top=315 right=340 bottom=494
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: Self-Check
----- HyperTalk script -----
on mouseUp
  visual iris close
  hide card button "Self-Check"
  show card button "left"
  show card button "right"
  pop card
end mouseUp



-- part 17 (field)
-- low flags: 80
-- high flags: 2007
-- rect: left=54 top=162 right=278 bottom=335
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 0
-- font id: 3
-- text size: 10
-- style flags: 0
-- line height: 13
-- part name: Grayscale


-- part 20 (field)
-- low flags: 80
-- high flags: 2007
-- rect: left=48 top=176 right=292 bottom=329
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 0
-- font id: 3
-- text size: 10
-- style flags: 0
-- line height: 13
-- part name: Preview


-- part 27 (button)
-- low flags: 00
-- high flags: 0000
-- rect: left=220 top=308 right=342 bottom=263
-- title width / last selected line: 0
-- icon id / first selected line: 21700 / 21700
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: 
----- HyperTalk script -----
on mouseUp
  visual effect zoom open
  go to stack "Apple Scanner"
end mouseUp



-- part 29 (field)
-- low flags: 01
-- high flags: 2004
-- rect: left=18 top=74 right=274 bottom=212
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 0
-- font id: 3
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: Note


-- part 35 (field)
-- low flags: 80
-- high flags: 0004
-- rect: left=260 top=43 right=75 bottom=443
-- title width / last selected line: 0
-- icon id / first selected line: 0 / 0
-- text alignment: 0
-- font id: 3
-- text size: 9
-- style flags: 0
-- line height: 12
-- part name: Message
----- HyperTalk script -----
on mouseClick
  hide card field "Message"
end mouseClick



-- part 48 (button)
-- low flags: 00
-- high flags: 2000
-- rect: left=404 top=280 right=303 bottom=428
-- title width / last selected line: 0
-- icon id / first selected line: 2162 / 2162
-- text alignment: 1
-- font id: 0
-- text size: 12
-- style flags: 0
-- line height: 16
-- part name: Left
----- HyperTalk script -----
on mouseUp
  visual zoom in to card
  go to card "diagnostic"
end mouseUp



-- part contents for card part 17
----- text -----
Grayscale

Instructs the scanner to scan the original within the single scan area with Grayscale composition.  Grayscale composition uses 4 bits per pixel to represent 16 different shades of gray.  At a resolution of 300 dots per inch, a grayscale scan records 1200 bits of information per inch for each horizontal inch scanned, or 360,000 bits per square inch.

Grayscale composition can be used for only one scan area.  No other scan areas can be present.  The scan area designated as Grayscale composition is indicated in the Scanner window by a wide dark dotted line.

When creating a Grayscale composition scan area, AppleScan enables the Contrast & Brightness settings.  Choose Contrast and Brightness to set the contrast and brightness levels.

When a window contains a grayscale image, the window title in the View menu displays a Grayscale icon.

A grayscale image can be displayed on any monitor that can display 16 shades of gray, such as a color monitor or a high-resolution monitor.  The correct monitor setting for the Macintosh II with an extended video card is 8-bits grayscale, 256 levels.  You change this setting in the Control Panel.

If the monitor being used cannot display 16 shades of gray, AppleScan displays the image in black and white.  Displaying the image as Line Art composition does not effect the grayscale information in memory or in a saved document.

Grayscale images can be converted to halftone or line art by using the Converter.  A conversion can be performed immediately, or save the grayscale image and convert it at a later time.  



-- part contents for card part 20
----- text -----
Preview

Instructs the scanner to perform a 75 dots per inch (dpi) resolution, 100% scale, in Line Art composition.

A preview is effected by the Threshold setting and the Graymap setting.  Typically, Preview is used to obtain a rough scan image to set scan areas prior to using Scan.

A preview scans the entire scanner glass, ignoring any scan areas set in the Scanner window.


-- part contents for card part 29
----- text -----
If either of the following  messages appear:

 • "can't shade"
 • "can't find home position"

turn the scanner off and then on again.  If this doesn't fix the problem, return the scanner to your dealer for repairs.

-- part contents for card part 35
----- text -----
Click an item in the Scan Control Panel you would like information about.